This report provides an overview of my research to date. The report begins by explaining why my field - purchasing and supply management - is a relevant and indeed increasingly critical subject both for academic researchers and for companies and organisations. I explain the main pillars, or axes, of my research and subsequently introduce the two main areas within purchasing and supply management to which I have contributed, namely supply relationships and networks, and the role of suppliers in new product development (NPD) and innovation. The report provides an overview of the main research projects in which I have been involved and I subsequently discuss in more detail my contribution to the field and the research philosophy and methodologies that I employ. In particular, I reflect on the use of qualitative case study research in purchasing and supply management and offer suggestions for how to ensure good quality research. The report concludes with an overview of future research plans.